Fact Sheet for <b>Occurence 3336 - 006 Risteigsætri</b>

					Norsk versjon
	THE ORE DATABASE
	Occurence 3336 - 006 Risteigsætri
	(Object Id: 5972) (Last updated: 04.05.2006)

Location

County:

Buskerud

Municipality:

Rollag (3336)

Map 1:50000:

Nore (1615-2)

Map 1:250000:

Hamar

Coordinate system:

EU89-UTM Zone 32

East:

509218 m.

North:

6652562 m.

Longitude:

9.1653250

Latitude:

60.0102310

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Resource

	Resource Type:	Base metals (Cu,Zn,Pb,Fe sulphides, As,Sb,Bi,Sn)	Resource Subtype:	Copper
			Element(s):	Cu Mo

Importance

Raw material meaning:

Little Importance (reg. 18.02.2015)

Resources and production

	Activity:	Pitting	Reserves:
	Operating method:		Historical production:

Mineralization

Genesis: Pegmatite formation Form: Irregular

Main texture: Structureless Min. distribution: Irregular (scattered)

Main grain size: Coarse grained (> 3 mm) Main alteration: No country rock alteration

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Proterozoic Period: Mesoproterozoic

Province: South Norwegian Basement Province

Geotec.unit: Telemark Supergroup

Tectonic complex:

Igneous complex:

Group: Formation:

Mineralogy

Relationship Mineral Amount

Gangue mineral Quartz Major mineral (>10%)

Gangue mineral Biotite Major mineral (>10%)

Gangue mineral Plagioclase Major mineral (>10%)

Gangue mineral Muscovite Subordinate mineral (1-10%)

Gangue mineral Microcline Accessory mineral (<1%)

Ore mineral Bornite Major mineral (>10%)

Ore mineral Chalcopyrite Major mineral (>10%)

Ore mineral Magnetite Subordinate mineral (1-10%)

Ore mineral Molybdenite Subordinate mineral (1-10%)

Lithology:

Relationship Rock Origin

Wall rock Quartzite Sedimentary
Original rock :Quartz sandstone

Information(s) in free text format

Free text

Hovedskjerpet består av en ca. 15 m lang skjæring i N-S retning i østsiden av en kolle/skrent og ender i en vannfylt synk, ca. 4 x 3 m i omriss. Tippvolumet er ca. 60 m3. Mineraliseringen er tilknyttet en ca. 0.5 m tykk kvarts-feltspatåre som står steilt i N-S retning, mens lagning i omgivende kvartsitt har et svakt østlig fall. Mineralisering består av kobberkis og bornitt med mindre mengder molybdenitt og magnetitt. Kobberkis og bornitt opptrer typisk sammenvokst i mm til 1-2 cm store aggregater. Den rikeste mineraliseringen synes å opptre sammen med plagioklas og biotitt. Rød til gul K-feltspat er anriket lokalt, mens muskovitt opptrer i underordnede mengder og mer jevnt fordelt. Det er også sprengt ut noe materiale i samme åre ca. 20 m sør for synken og også her er den mineralisert med kobberkis og bornitt. Det er også sprengt ut noen blokker i samme åre ca. 20 m nord for skjerpet. Her er det imidlertid kun spor av bornitt. En svakt mineralisert pegmatitt, ca. 25 cm bred opptrer ca. 40 m vest for hovedåren. Denne er vertikalt stående og løper i SSØ-NNV retning. Det er sprengt litt også i denne og her sees også små mengder av kobberkis og bornitt.

Fieldsamples

Sample No. Sample type Miscellanrous

BU0165.01 Dump

Sampler: Bjerkgård, T./...Stored: Løkken/...Size(kg): 2

Comment: Chalcopyrite and bornite in coarse matrix of feldspar, quartz and biotite

No. of registrated element analyses = 1

BU0165.02 Dump

Sampler: Bjerkgård, T./...Stored: Løkken/...Size(kg): 2

Comment: Disseminated chalcopyrite and bornite in quartz

No. of registrated element analyses = 1

BU0165.03 Dump

Sampler: Bjerkgård, T./...Stored: Løkken/...Size(kg): 2

Comment: Chalcopyrite, bornite and molybdenite in coarse feldpar, biotite and quartz

No. of registrated element analyses = 1

NB! All analyse values are shown at the end of the printout.:

Analyse Results

from

Deposit Area 3336 - 006 Risteigsætri

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)

Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ag* Au#

BU0165.01 Dump 26729 190 33 12 9 67.4 1334.0

BU0165.02 Dump 28297 102 41 5 6 60.9 1334.0

BU0165.03 Dump 36641 160 57 9 12 87.7 747.0

------------------

Sample No. As* Cd* Ba* Mo* Sn* Sb* Bi* Se* Ga*

BU0165.01 2 4.4 245 3.00 5 2 692 94.00 10.00

BU0165.02 7 3.9 16 7.00 2 2 766 51.00 2.00

BU0165.03 2 -.1 61 4140.00 5 1 2545 108.00 5.00

------------------

Sample No. In* S% V* Cr* Mn* Fe% Th* U* W*

BU0165.01 -1.00 .92 42 16 577 3.02 2.00 2.00 6

BU0165.02 -1.00 .97 8 29 180 1.61 2.00 2.00 11

BU0165.03 -1.00 4.41 38 -1 292 1.49 4.00 31.00 16

------------------

Sample No. Sr* La* B* Te* Hg* Tl*

BU0165.01 5.0 17.00 -1 16.00 -1 1

BU0165.02 2.0 13.00 -1 25.00 -1 -1

BU0165.03 7.0 30.00 -1 28.00 -1 -1

	Genesis:	Pegmatite formation	Form:	Irregular
	Main texture:	Structureless	Min. distribution:	Irregular (scattered)

	Province:	South Norwegian Basement Province
	Geotec.unit:	Telemark Supergroup
	Tectonic complex:
	Igneous complex:

Relationship	Mineral	Amount
Gangue mineral	Quartz	Major mineral (>10%)
Gangue mineral	Biotite	Major mineral (>10%)
Gangue mineral	Plagioclase	Major mineral (>10%)
Gangue mineral	Muscovite	Subordinate mineral (1-10%)
Gangue mineral	Microcline	Accessory mineral (<1%)
Ore mineral	Bornite	Major mineral (>10%)
Ore mineral	Chalcopyrite	Major mineral (>10%)
Ore mineral	Magnetite	Subordinate mineral (1-10%)
Ore mineral	Molybdenite	Subordinate mineral (1-10%)

	Relationship	Rock	Origin
	Wall rock	Quartzite	Sedimentary Original rock :Quartz sandstone

Sample No.	Sample Type	Cu*	Zn*	Pb*	Co*	Ni*	Ag*	Au#
BU0165.01	Dump	26729	190	33	12	9	67.4	1334.0
BU0165.02	Dump	28297	102	41	5	6	60.9	1334.0
BU0165.03	Dump	36641	160	57	9	12	87.7	747.0

Sample No.	As*	Cd*	Ba*	Mo*	Sn*	Sb*	Bi*	Se*	Ga*
BU0165.01	2	4.4	245	3.00	5	2	692	94.00	10.00
BU0165.02	7	3.9	16	7.00	2	2	766	51.00	2.00
BU0165.03	2	-.1	61	4140.00	5	1	2545	108.00	5.00

Sample No.	In*	S%	V*	Cr*	Mn*	Fe%	Th*	U*	W*
BU0165.01	-1.00	.92	42	16	577	3.02	2.00	2.00	6
BU0165.02	-1.00	.97	8	29	180	1.61	2.00	2.00	11
BU0165.03	-1.00	4.41	38	-1	292	1.49	4.00	31.00	16

Sample No.	Sr*	La*	B*	Te*	Hg*	Tl*
BU0165.01	5.0	17.00	-1	16.00	-1	1
BU0165.02	2.0	13.00	-1	25.00	-1	-1
BU0165.03	7.0	30.00	-1	28.00	-1	-1